Perhaps you should try some spelling variations:
world robert » world report, bald robert, world role
robert south » robert smith
tptp world » app world
2008 tptp » 2008 tcp
7 third » 3 third, 6 third, 10 third
5 third » 3 third

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: 2008 tptp world robert south ((7 third) OR (5 third)).
• Adding a wildcard symbol may retrieve word variants: 2008 tptp world robert south ((7 third) or (5 third))*.